





⚡ Weatherproof power that never quits—because your ride deserves the best.
The HELLA 007794301 is a 12V, 5-pin Mini ISO relay designed for automotive applications requiring reliable high-current switching. Featuring a weatherproof housing and metal mounting bracket, it supports up to 40 amps at elevated temperatures, making it perfect for vehicle add-ons like horns and auxiliary lights. Engineered by HELLA, a global leader with over 100 years of expertise, this relay combines durability, precision, and easy installation with compatible weatherproof connectors for ultimate protection against water ingress.





















| ASIN | B003TEO9GU |
| Brand | Hella |
| Customer Reviews | 4.4 4.4 out of 5 stars (321) |
| Date First Available | 21 Jun. 2010 |
| Exterior | Machined |
| Item Weight | 54.4 g |
| Item model number | 007794301 |
| Lift type | Manual |
| Manufacturer | HELLA |
| Manufacturer part number | 007794301 |
| Model | 12V, 5 Pin |
| OEM Part Number | 007794301 |
R**R
Have had no problems
J**C
This is a very fine relay, well made and high quality. I bought it to use for a car electrical project, where I needed it to work reliably without any worries. Most of the automotive relays you see here are cheap no-name relays with no specs, and frankly, I wouldn't trust them to work reliably for an important purpose. The Hella relay has a very complete spec sheet that you can find on the internet, if you search for Hella plus the part number. The coil resistance is spec'ed at 85 ohms, I measured 86 ohms for my relay. The pull-in voltage is spec'ed at less than or equal to 8.0 volts, I measured 7.65 volts. The drop-out voltage is spec'ed at greater than or equal to 1.0 volt, I measured 2.8 volts. The other specs are impressive and believable. The relay is slightly on the large size, so you will need a decent amount of room to mount it, especially if you use the very nice Hella wiring harness that I also purchased and have reviewed (Hella part number H84709001). With the Hella harness, I can believe that the connection is "weatherproof" as specified, but only if you mount it right-side up. If upside-down, water might still leak into the connection somehow. The Hella relay is more expensive than the cheapo generic relays, but you certainly get what you pay for in this case. The relay installed and worked just fine for my purpose, and I was very satisfied.
T**R
I’ve over amped these but never had one fail from water ingress. Good product for those places that get a bit moist.
J**M
Plugged straight in on a 1996 Mercury 60hp for trim
J**N
Had to replace trailer harness relay on my Jeep. Chrysler wanted $50 plux tax. This Hella version is pretty much same quality for $14. Weather seals just like the OEM. So far works like a charm.
Trustpilot
1 month ago
1 week ago